Shaddup - meaning and definition. What is Shaddup
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What (who) is Shaddup - definition

1981 SINGLE BY JOE DOLCE
Shaddup You Face; Shaddapa You Face; Shaddup Your Face; Shaddap Your Face; Shuddup You Face; Shut Up You Face; Shadappa your face; Bite Your Bum

Shaddup      
Slang for Shut Up
Why don't you just shaddup?

Wikipedia

Shaddap You Face

"Shaddap You Face" is a novelty song written and performed by Joe Dolce (released under the name Joe Dolce Music Theatre) about a rebellious Italian boy. Released in late 1980, it set a number of sales and longevity records.

It was released by Mike Brady's record label Full Moon Records. By February 1981, the single had sold over 290,000 units in Australia, surpassing Brady's own "Up There Cazaly" to become Australia's best-selling single ever.